Expansion of Product_{k>=1} 1/((1 - x^(k^2))*(1 - x^k)).

Terms

a(0) =1a(1) =2a(2) =4a(3) =7a(4) =13a(5) =21a(6) =34a(7) =52a(8) =80a(9) =119a(10) =175a(11) =251a(12) =359a(13) =504a(14) =702a(15) =965a(16) =1320a(17) =1785a(18) =2401a(19) =3200a(20) =4245a(21) =5589a(22) =7324a(23) =9535a(24) =12364a(25) =15944a(26) =20478a(27) =26175a(28) =33338a(29) =42279